宏岩煤矿瓦斯抽采合理负压及影响因素分析  

Analysis of gas drainage reasonable negative pressure and influential factors at Hongyan Mine

作　　者：张志荣[1,2] 

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京市朝阳区100013 [2]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京市朝阳区100013

出　　处：《中国煤炭》2017年第3期113-115,共3页China Coal

摘　　要：分析了钻孔封孔质量、瓦斯涌出量、煤层中水分等与瓦斯抽采效果的关系。通过对比分析宏岩煤矿9~#+10~#煤层不同孔口负压的本煤层钻孔瓦斯流量及浓度,确定宏岩煤矿抽采负压在42~46 kPa最为合理。Hole sealing quality,gas emission amount and the relation between gas drainage effect and water content in coal seam were analyzed.By comparing the amount of gas inflow and concentration of different negative pressures of borehole entrance at 9# and 10# of Hongyan Mine,it was determined that 42~46 kPa was the most reasonable negative pressure range.

关 键 词：瓦斯抽采 合理负压 封孔质量 瓦斯涌出量 水分 抽采效果 抽采浓度 

分 类 号：TD712.6[矿业工程—矿井通风与安全]